October 2017
Intermediate to advanced
480 pages
9h 49m
Japanese
Content preview from Rではじめるデータサイエンス
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
第
Ⅱ
部
データラングリング
Ⅱ部ではデータラングリング、つまりデータを可視化やモデル化のために有用な形式にしてRに取
り込む技法を学びます。データラングリングは非常に重要です。これなしにデータ作業はできません。
データラングリングは以下の 3 つの主要部分からなります。
理解
プログラム
インポート 整理
変換
モデル
可視化
コミュニケーション
ラングリング
Ⅱ部の構成は次の通りです。
●
7章では、本書で使うデータフレーム形式
tibble
について学ぶ。通常のデータフレームとどこ
が違うか、「自分で」作るにはどうするかを学ぶ。
●
8 章では、データをディスクからRにどのように持ってくるかを学ぶ。単純テキストの矩形デー
タに焦点を絞るが、他の種類のデータを扱うのに役立つパッケージも示す。
●
9 章では、整理データ、変換、可視化、モデル化を容易にするデータ格納の一貫した方法を学ぶ。
基本原則、データを整理にする方法を学ぶ。
データラングリングには、これまで少しだけ学んできたデータ変換も含まれます。現場で扱うこと
の多い3 種類のデータを扱う新たなスキルに焦点を当てます。
●
10章では複数の相互に関係するデータセットを扱うツールを学ぶ。
●
11章では文字列操作の強力なツールである正規表現を学ぶ。
104
第Ⅱ部 データラングリング ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.